40B QT question

[Nelve]

I set up a 40 gallon breeder as a quarantine/hospital tank around 3 months ago and added ammonia/bottled bacteria. I plan to have this tank set up permanently incase a fish gets sick and I can move them to it. I have an ammonia badge and watched the ammonia go up and overtime the ammonia disappeared. I have been testing the Nitrites using an API test kit and it matches up to the 5.0ppm mark which I am thinking it is much higher then 5.0ppm. My guess is that I put too much ammonia at the start and the tank is stuck with too high of nitrites. For filtration I am using a HOB with a MarinePure block in it, a sponge filter and a second MarinePure block sitting in the tank.

Should I go ahead and do a full 100% water change and restart with less ammonia and a new bottle of bacteria?

 

[Redfoxtang]

API test kits are skewed with saltwater. I would use Salifert test kits to re assure yourself. But honestly I would just do a water change add some more bacteria and wait a couple days then you should be good to go. Would do a couple of test but honestly you should be fine!